1. High Mechanical Strength with Excellent Conductivity
Copper-bonded (and copper-clad) steel earth rods combine the
tensile strength of steel with the high electrical conductivity of
copper. This bimetallic structure ensures robust mechanical
performance alongside reliable current flow—ideal for grounding,
earthing, and structural electrical applications.
2. Enhanced Corrosion Resistance
The outer layer of copper offers superb corrosion resistance,
protecting the steel core from environmental degradation. This
makes copper-bonded steel especially suitable for long-term use in
outdoor and underground grounding systems.
3. Superior Durability and Long Service Life
Manufactured via cold rolling, hot drawing, or metallurgical
bonding, these flat bars ensure a strong copper-steel interface
that resists peeling, cracking, or delamination. Typical copper
layer thickness is ≥ 0.3 mm, and tensile strength ≥ 600 N/mm²,
giving a service life of 30–50 years or more.
Uni Groundrod
4. Cost-Effectiveness and Theft Deterrence
Copper-bonded steel is significantly less costly than solid copper,
thanks to reduced copper usage combined with enduring performance.
Moreover, because copper recovery is impractical, these materials
have low scrap value, which helps deter theft.
